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合成了3个巢式磷碳硼烷镍配合物[NiCl(Py){7,8-(PPh2)2-7,8-C2B9H10}].CH2Cl2(1)、[Ni{7,8-(PPh2)2-7,8-C2B9H10}2](2)、[Ni{7,8-(OPPh2)-7,8-C2B9H10}{7,8-(PPh2)-7,8-C2B9H10}](3),并通过元素分析、红外光谱、核磁共振谱以及单晶衍射等手段对其进行了表征。单晶结构分析表明,镍离子的配位环境在这3个配合物中都是稍微扭曲的平面方形,其中2个配位位置由磷碳硼烷配体的两个磷原子占据,另外2个配位位置分别由氯离子、吡啶氮原子或者氧化的磷碳硼烷配体的氧原子占据。借助于分子间的C-H…Cl氢键或者C-H.H-B双氢键作用,3个配合物都可以形成一维超分子结构。
Three nested phosphomoboron nickel complexes [NiCl (Py) {7,8- (PPh2) 2-7,8-C2B9H10}] were synthesized. CH2Cl2 (1), [Ni {7,8- (PPh2 ) 2-7,8-C2B9H10} 2], [Ni {7,8- (OPPh2) -7,8-C2B9H10} {7,8- (PPh2) -7,8-C2B9H10} ), And characterized by elemental analysis, infrared spectroscopy, nuclear magnetic resonance and single crystal diffraction. Single crystal structure analysis shows that the coordination environment of nickel ions is a slightly warped plane square in the three complexes, two of which are occupied by two phosphorus atoms of phosphorus carborane ligands and the other two The coordination sites are occupied by the oxygen atoms of chloride, pyridine nitrogen or oxidized phosphocarbonine ligand, respectively. All three complexes can form a one-dimensional supramolecular structure by virtue of the intermolecular C-H ... Cl hydrogen bond or the C-HH double hydrogen bond.